Brazilian health authorities are monitoring two patients for possible Ebola infection in Sao Paulo and Rio de Janeiro, officials say, sparking further concern of the deadly virus outbreak in central Africa spreading abroad. A 37-year-old man from the Democratic Republic of the Congo (DRC), where the outbreak has been concentrated, "exhibited symptoms such as fever, meeting the definition of a suspected case" of Ebola, the Sao Paulo state government said in a statement on Saturday.While initial tests did not detect the Ebola virus in the patient, he is being monitored and isolated as a precautionary measure at a specialised infectious disease facility, the statement said.The health department in Rio de Janeiro state, meanwhile, reported that it had activated safety protocols after a man from Uganda showed "viral symptoms such as cough, chills, and diarrhoea".The Rio city government said in an email to AFP that the patient tested positive for malaria on Saturday evening and "the case remains under investigation".There have been more than 1,000 suspected cases of Ebola in the DRC since the outbreak was declared on May 15, including nearly 250 deaths, the Africa Centres for Disease Control and Prevention said on Thursday.Several infections and one death have been confirmed in neighbouring Uganda.However, the true reach of the outbreak in the DRC, which is thought to have been circulating before it was detected, is likely to be much wider, the World Health Organization has warned.The Sao Paulo government said that despite the suspected case, "the technical assessment indicates that the risk of the disease being introduced into Brazil and South America remains very low".Recovered Ebola patients recount illnessFive patients have recovered from a rare type of Ebola virus, the head of the World Health Organization said during a visit to Bunia in eastern Congo.“Four people will be discharged today and there was one that was discharged the day before yesterday,” WHO Director-General Tedros Adhanom Ghebreyesus said during the opening of a new Ebola treatment centre in Bunia, the capital of Ituri province.“Of course, we’re still working on vaccines and treatments but that doesn’t mean that people cannot recover from Ebola."The WHO said a patient had recovered from the Bundibugyo virus, the current species of Ebola, which has no approved treatment or vaccine. It was the first documented recovery of a confirmed Bundibugyo patient during the current outbreak.Ezo Etienne, a Congolese health worker who recovered from the Ebola virus, has now been discharged. (Reuters: Gradel Muyisa Mumbere)Baraka Bulambulu, one of those who recovered, told The Associated Press on Sunday that community members feared contracting an unknown illness from them, keeping their distance while delivering food and medicine.He said the uncertainty was overwhelming, as he and other patients believed they might die without knowing what disease they had, though testing eventually confirmed Ebola."Being able to come out of this alive is an immense source of happiness," he said."Many people who were in the same situation died."Ezo Étienne, a nurse, said his symptoms began during ward rounds when he suddenly felt dizzy, then rapidly deteriorated into vomiting, intense itching, severe diarrhoea and extreme weakness.He was tested seven times before Ebola was confirmed.His treatment remained purely to treat the symptoms: medications to control vomiting, fluids to prevent dehydration and pain relievers. "That was all they could provide," he said.He urged the public and healthcare workers not to dismiss early symptoms such as vomiting and headaches, warning that misinformation leads many people to believe they have been poisoned rather than seeking hospital care.AFP/AP